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Centric 121.66042 Disc Brake Rotor - Front
Reliable Disc Brake Rotor for GM Trucks and SUVs
The Centric C-TEK Standard Disc Brake Rotor 121.66042 is engineered for dependable braking performance on select Cadillac, Chevrolet, GMC, and Hummer vehicles. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking for heavy-duty applications.
- Vented disc brake rotor with straight vane design for effective cooling
- Nominal thickness of 1.496 inches (38.000 mm) and discard thickness of 1.437 inches (36.500 mm)
- Overall height of 3.512 inches (89.200 mm) and outside diameter of 12.787 inches (324.800 mm)
- Floating disc mounting with 8 lug holes, 0.650 inch (16.500 mm) diameter each
- Compatible with multiple GM models including Silverado 1500 HD, Sierra 2500 HD, and Cadillac DeVille
About the C-TEK Standard Disc Brake Rotors Line
The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards, providing reliable braking performance for a range of GM trucks and SUVs. This product line focuses on delivering rotors with precise dimensions and vented designs to maintain optimal temperature control during braking, which is critical for vehicles like the Chevrolet Silverado 1500 HD and GMC Sierra 2500 HD that often handle heavy loads.
Product Details and Specifications
This Centric rotor features a smooth surface type and a vented design with straight vanes to enhance airflow and reduce heat buildup. The rotor’s floating disc mounting and two miscellaneous holes contribute to proper fitment and performance. With a center hole diameter of 4.650 inches (118.100 mm) and a mounting bolt hole circle diameter of 6.500 inches (165.100 mm), it is engineered for precise installation. Weighing approximately 25.72 lbs (11.69 kgs), this rotor balances durability and weight for effective braking response.
Compatible Vehicles and Applications
- Cadillac DeVille
- Chevrolet Avalanche 2500, Silverado 1500 HD, Silverado 2500, Suburban 2500
- GMC Sierra 1500 HD, Sierra 2500 HD, Yukon XL 2500
- Hummer H2
- Chevrolet Express 2500, Express 3500, Savana 2500, Savana 3500
Common Issues Addressed by This Rotor
- Brake rotor warping due to heat buildup
- Reduced braking efficiency from worn or thin rotors
- Vibration or pulsation during braking
- Uneven brake pad wear caused by rotor surface irregularities
- Noise or squealing related to rotor surface condition
Installation Notes and Tips
Ensure the rotor discard thickness of 1.437 inches (36.500 mm) is not exceeded before installation. Clean the rotor surface to remove any protective coatings or debris. Verify compatibility with your vehicle’s lug pattern and mounting specifications, including the 8 lug holes and 6.500 inch bolt circle diameter. Proper torque specifications should be followed to avoid rotor distortion. This rotor does not include bearings or an ABS tone ring, so verify if your vehicle requires these components separately.
Quality Assurance and Warranty
Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.
| Brand | Centric |
|---|---|
| Part Number | 121.66042 |
| Position | C-TEK Standard Disc Brake Rotors, Front |
| ABS Tone Ring Included | No |
| Bearings Included | No |
| Center Hole Diameter | 4.650 |
| Center Hole Diameter | 118.100 |
| Disc Mounting [cntrc] | Floating |
| Discard Thickness | 1.437 |
| Discard Thickness | 36.500 |
| Misc Holes [cntrc] | 2 |
| Mounting Bolt Hole Circle Diameter | 6.500 |
| Mounting Bolt Hole Circle Diameter | 165.100 |
| Nominal Thickness | 1.496 |
| Nominal Thickness | 38.000 |
| Outside Diameter | 12.787 |
| Outside Diameter | 324.800 |
| Overall Height | 3.512 |
| Overall Height | 89.200 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Diameter | 0.650 |
| Stud/Lug Hole Diameter | 16.500 |
| Stud/Lug Hole Quantity | 8 |
| Surface Type | Smooth |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 11.690 |
| Weight [cntrc] lbs | 25.720 |
This part fits 127 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2022 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2022 | Chevrolet | Express 3500 | Front | JH6; C-TEK Standard Disc Brake Rotors | ||
| 2022 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2022 | GMC | Savana 3500 | Front | JH6; C-TEK Standard Disc Brake Rotors | ||
| 2021 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2021 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2020 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2020 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2019 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2019 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2018 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2018 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2017 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2017 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2016 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2016 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2015 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2015 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2014 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2014 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2013 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2013 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2013 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2013 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2013 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2012 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2012 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2012 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2012 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2012 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2011 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2011 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2011 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2011 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2011 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2010 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2010 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2010 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2010 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2010 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2009 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2008 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | Chevrolet | Express 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | Chevrolet | Silverado 1500 HD Classic | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | GMC | Savana 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | GMC | Sierra 1500 HD Classic | Front | Classic GMT 800; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||
| 2007 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2007 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | Chevrolet | Avalanche 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | Chevrolet | Express 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2006 | Chevrolet | Silverado 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | GMC | Savana 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2006 | GMC | Sierra 1500 HD | Front | 8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||
| 2006 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2006 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | Cadillac | DeVille | Sedan | Front | Heavy Duty; C-TEK Standard Disc Brake Rotors | |
| 2005 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2005 | Chevrolet | Avalanche 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | Chevrolet | Express 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2005 | Chevrolet | Silverado 1500 | Crew Cab Pickup | 4WD | Front | C-TEK Standard Disc Brake Rotors |
| 2005 | Chevrolet | Silverado 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | GMC | Savana 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2005 | GMC | Sierra 1500 HD | RWD | Front | Heavy Duty; C-TEK Standard Disc Brake Rotors | |
| 2005 | GMC | Sierra 1500 HD | 4WD | Front | 8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors | |
| 2005 | GMC | Sierra 2500 HD | Front | exc HD Pkg; C-TEK Standard Disc Brake Rotors | ||
| 2005 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2005 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2004 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2004 | Chevrolet | Avalanche 2500 | Front | exc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors | ||
| 2004 | Chevrolet | Express 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2004 | Chevrolet | Silverado 1500 | Front | 8 Lug Wheels; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||
| 2004 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2004 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2004 | GMC | Savana 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2004 | GMC | Sierra 1500 | Front | 8 Lug Wheels; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||
| 2004 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2004 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2004 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2003 | Chevrolet | Avalanche 2500 | Front | exc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors | ||
| 2003 | Chevrolet | Express 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2003 | Chevrolet | Silverado 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | GMC | Savana 2500 | Front | 8 Lug Disc Brake Caliper compatible with Brake Drum.; C-TEK Standard Disc Brake Rotors | ||
| 2003 | GMC | Sierra 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2003 | Hummer | H2 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2002 | Chevrolet | Avalanche 2500 | Front | exc 2" Body Raise; Light Duty; C-TEK Standard Disc Brake Rotors | ||
| 2002 | Chevrolet | Silverado 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | GMC | Sierra 1500 HD | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2002 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2001 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2001 | Chevrolet | Silverado 1500 HD | 4WD | Front | C-TEK Standard Disc Brake Rotors | |
| 2001 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2001 | Chevrolet | Suburban 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2001 | GMC | Sierra 1500 HD | 4WD | Front | C-TEK Standard Disc Brake Rotors | |
| 2001 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2001 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2000 | Cadillac | DeVille | Limousine | Front | C-TEK Standard Disc Brake Rotors | |
| 2000 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2000 | Chevrolet | Suburban 2500 | RWD | Front | C-TEK Standard Disc Brake Rotors | |
| 2000 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 2000 | GMC | Yukon XL 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 1999 | Chevrolet | Silverado 2500 | Front | C-TEK Standard Disc Brake Rotors | ||
| 1999 | GMC | Sierra 2500 | Front | C-TEK Standard Disc Brake Rotors |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.